ML12314A260
| ML12314A260 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 11/20/2012 |
| From: | Lyon C Plant Licensing Branch IV |
| To: | South Texas |
| Singal B | |
| References | |
| TAC ME9806 | |
| Download: ML12314A260 (4) | |
Text
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0-11 NUCLEAR REGULATORY COMMISSION
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ovem er 20, 2012 LICENSEE:
STP Nuclear Operating Company FACILITY:
South Texas Project, Unit 2
SUBJECT:
SUMMARY
OF TELEPHONE CONFERENCE ON NOVEMBER 8,2012, TO DISCUSS THE LICENSEE'S REQUEST FOR RELIEF RR-ENG-3-09, DATED OCTOBER 16, 2012 (TAC NO. ME9806)
On November 8, 2012, members of the U.S. Nuclear Regulatory Commission (NRC) staff held a telephone conference (telecon) with representatives from STP Nuclear Operating Company (STPNOC, the licensee) to discuss the licensee's request for relief RR-ENG-3-09 dated October 16,2012 (Agencywide Documents Access and Management System (ADAMS)
Accession No. ML12299A287), for South Texas Project, Unit 2.
The licensee provided clarifying information for RR-ENG-3-09 to the NRC staff regarding (1) the location of the through-wall indication on the weld neck flange at valve 2-EW-0274 (Essential Chillers 21B/22B to Essential Chillers 21A122A ECW Cross-Tie Valve) and (2) the purpose of the cross-tie piping.
Based on the discussion, the licensee proposes to supplement its letter dated October 16, 2012, and provide the following information:
- 1.
A detailed description of the location of the through-wall indication with regard to the flange, cross-tie piping, and associated valves.
- 2.
A discussion of the purpose of the cross-tie during normal operations and accident conditions and the configuration during the normal and accident conditions of the cross-tie valves.
- 3.
A discussion of any references to the cross-tie in plant operating procedures, abnormal operating procedures, emergency operating procedures, design basis, and risk assessments.
- 4.
A discussion of the safety significance of the cross-tie piping and valves.
The licensee will confirm the proposed date of its submittal with the NRC project manager. No regulatory decisions were made on the telecon. A list of attendees is enclosed.
- 2 If you have any questions, please contact me at (301) 415-2296 or bye-mail at fred.lyon@nrc.gov.
Carl F. Lyon, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-499
Enclosure:
Attendance List cc w/encl: Distribution via Listserv
ATTENDANCE LIST U.S. NUCLEAR REGULATORY COMMISSION TELEPHONE CONFERENCE ON NOVEMBER 8, 2012 WITH STP NUCLEAR OPERATING COMPANY REQUEST FOR RELIEF RR-ENG-3-09 SOUTH TEXAS PROJECT. UNIT 2 DOCKET NO. 50-499 STP Nuclear Operating Company U.S. Nuclear Regulatory Commission M. Berg F. Lyon, Office of Nuclear Reactor Regulation (NRR)
M. Murray D. Alley, NRR R Kersey J. Tsao, NRR S. Patel J. Drake, Region IV J. Paul C. Chappell I
I Enclosure
- 2 If you have any questions, please contact me at (301) 415-2296 or bye-mail at fred.lvon@nrc.gov.
Docket No. 50-499
Enclosure:
Attendance List cc w/encl: Distribution via Listserv DISTRIBUTION:
PUBLIC LPLIV r/f RidsAcrsAcnw _MaiICTR Resource RidsNrrDorlLpl4 Resource RidsNrrLAJBurkhardt Resource RidsNrrPMSouth Texas Resource ADAMS Accession No. ML12314A260 IRAJ Carl F. Lyon, Project Manager Plant Licensing Branch IV Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation RidsNrrDeEpnb Resource RidsRgn4MailCenter Resource DAiley, NRR/DE/EPNB JTsao, NRR/DE/EPNB JDrake, RIV OFFIr.F NRR/LPL4/PM NRR/LPL4/LA NRRlLP4/BC NRRlLPL4/PM NAME FLyon JBurkhardt MMarkley
~LYOn DATE 11/20/12 11/20/12 11/20/12 1120112 OFFICIAL RECORD COpy